When visiting the bathroom in another person's house, and discovering a large amount of fine reading materials. This treasure trove can extend a bathroom visit longer than is helpful; i.e. missing the start of a meal or the opening twenty minutes of a movie.
Dude1: Dude where have you been? I'm not explaining what you missed in Inception; this film is complicated enough anyway.
Dude2: Sorry man, you've kinda got a Loobrary up there, I was catching up with Where's Wally.